Antiskidding device for vehicles.



M. J. ROHR.

ANTISKIDDING DEVICE FOR VEHICLES.

APPLICATION FILED DEO.16,1910.

Patented May 14, 1912.

ATTO EY UNITED STATES PATENT OFFICE.

MARSHALL J. norm, or wasnmcTon, DISTRICT or conmm, ASSIGNOR 01' cm" FOURTH 1'0 EMORY n. BOGLEY AND ONE-FOURTH To JOHN w. BOGLEY, BOTH o WASHINGTON, DISTRICT OF COLUMBIA.

ANTISKIDDING DEVICE- FOR VEHICLES.

Specification of Letters Patent.

' Patented May 14, 1912.

Application filed December 16, 1910. Serial No. 597,884. i

e To all whom it may concern Be it known that I, MARSHALL J. Rona, a citizen of the United States, residing at Washington, in the District of Columbia, have invented new and useful Improvements in Antiskidding Devices for Vehicles, of which the following isa specification.

This invention relates to certain'new and useful improvements in anti-skidding devices for vehicle wheels, and more articularly to that class in which provision is made for the ready attachment or removal of the anti-skidding device for the purpose of repairs or when it maybe desired not to use the same.

The present invention has for its objects among others to provide a simple and eflicient yet durable device of this character, embodying removable plates having s urs or projections, held by a band or ban s or the like having a cavity or cavities upon its or their inner face or faces for the reception of the mar 'nal portions of the plate or plates. This band or bands are further provided wit-h openings through which the projections of the plates pass, the material removed to form such openings being turned at substantially a right angle to the outer face of the band and embracing the opposite sides of the projections or spurs of the plate and serving also as auxiliary anti-skidding devices when the projections or spurs on the plates become worn to such an extent as to present such bent-up portions of' the band for contact with the ground.

Other objects and advantages of the invention will hereinafter appear and the novel features thereof will be particularly pointed out in the appended claim.

The invention is clearly illustrated in the accompanying drawings, which, with the numerals of reference marked thereon, form a part of this specification, and in which Fig. 6 is a perspective view of one of the plates removed.

Like numerals of reference indicate like parts throughout the different views.

Referring to the drawings, 1 designates a rim, 2 a tire, in this instance of any well known pneumatic form, and 3 the spokes of a wheel to which it is desired to apply the invention. It' is to be understood that as many of these anti-skidding devices as ma be desired may be a plied to the one whee As they are all su stantially the same in form and mode of .applicatlon, a detailed description of one will suffice for all.

4 is a plate preferably ofsteel, curved slightly to conform to the curvature of the outer face of the tire, as will be evident from Figs. 2 and 6, while upon the outer face thereof are providedany suitable number of s urs or projections 5 which may be of any esired form.

6 is a band, of steel or any other suitable material, having therein openings formed by punchin or otherwise forcing outthe metal, the creed or punched out portions thereof being extended at substantially right angles to the outer face of the band; as seen clearly in Fig. 3, forming the projections 7 which surround the openings. The inner face of the band at these points is ofl-set outward, so as to form a recess or cavity 8, as seen clearly in Figs. 2 and 3, for the reception of the plate 4, so that when applied, as seen in Fig. 2, the inner faces of the plate and band will be substantially flush, so as to present a smooth bearing upon the outer face of the tire and prevent undue wearing on the latter. In applying the anti-skidding device, the plate is first put in position from the under side of the band, the spurs or projections being forced through the openings between the flanges or projections 7, between each set of which the spurs 5 snugly fit, the plate being pressed firmly into the cavity 8. The ends of the band are .then applied about the tire and rim and fastened in some suitable manner. I have devised a variety of ways by which this band may be fastened.

In Figs. 1 and 2 I have shown the band as provided near its ends with openings or slots 9 extending transversely of the length thereof and into these openings are designed to be sprung or sna ped the rolled or turned over ends 10, 10 o the supplemental member 11, as will be evident upon reference to Figs. 1 and 2. 'The supplemental member ll is provided with a reinforce 12 into which is threaded a bolt 13 which carries upon its inner end a plate 14 adapted to bear against the rim 1, as seen clearly in Fig. 2. This bolt may be turned in any suitable manner, as by a suitable handle 15 indicated in Fig. 1. 16 is a lock nut upon the bolt adapted to bear against the under face of the supple-mental member 11, as seen best in Fig. 2, to lock the parts in position after the parts have been tightened by screwing up the bolt. It is to be understood that after the band is placed about the tire and rim, with the plate 4 in position therein, the ends 10 of the supplemental member 11 are sprung into the slots 9 of the band, the said band and supplemental member both being of spring metal or the like provided with suflicient resiliency for this purpose, and

then when the bolt is screwed up, the pressure of the plate 14 against the rim forces the band and supplemental member in opposite directions, so that the band is clamped tightly about the tire and rim. The supplemental member and the lock nut being disposed between the spokes and beyond the rim, that is between the same and the hub, the same is in position where it is not liable to become damaged in any way.

In Figs. 1 and 5 I have shown another of the numerous forms which I have devised for fastening the band 6 and its supplemental member 11 in position. In this instance, the band 6 is provided near one end with a slot 17 while the supplemental member 18 provided with the reinforce 19, as before, for the passage of the bolt, has its other end hinged, as at 20, to the adjacent end of the band 6. The mode of operation is substantially the same except that the rolled or turned over end 21 is sprung into the slot 17, the other end moving upon its From the above, it will be seen that I I have devised a simple and efficient yet durable form of anti-skidding device applicable to any and all forms of automobile tires or the like and one in which the wear plates may be readily removed or'replaccd when desired and yet which are so constructed and a'rranged as not to in any Wise damage the tire of the wheel; and while the structural embodin'ie-nt of the invention as hereinbefore disclosed is what I at the present time consider preferable, it is evident that the same is subject to changes, variations and modifications in details, proportion of parts etc. without departing from the spirit of the invention or sacrificing any of its advantages. I, therefore, do not intend to restrict myself to the precise form hereinbefore disclosed, but reserve the right to make such changes, variations and modifications as come properly within the scope of the protection prayed.

What is claimed as new is:-

In an anti-skidding device, a band offset outwardly forming a recess upon its inner face and a plurality of separated openings with surroundin rojections, a plate nonrotatably held within said recess and having spaced projections extending through said openings and beyond said surrounding projections and snugly embraced thereby, and means for connecting the ends of the band.

In testimony whereof I'have hereunto set my hand in presence of two subscribing witnesses.

MARSHALL J. ROHR.

Witnesses:

EMORY H. BOGLEY, GEO. H. SNYDER. 

